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hram777 [196]
3 years ago
5

1

Mathematics
2 answers:
xxTIMURxx [149]3 years ago
8 0

(x-4)(x-4)= 0

x-4= 0 , x-4= 0

x-4+4= 0+4 , x-4+4= 0

x= 4 , x= 4

Answer is x= 4 (C.)

Whitepunk [10]3 years ago
6 0

Answer:

x = {4, 4}

Step-by-step explanation:

(x - 4)(x - 4) = 0 has two real, equal roots:  x = 4 and x = 4.  Notice that subbing 4 for x in this equation results in a TRUE equation.

You might be interested in
Simplify please! sqrt(8x^(12) y^(7))
HACTEHA [7]
\sqrt{8 x^{12}  y^{7} } =  \sqrt{8} \sqrt{x^{12}} \sqrt{  y^{6}*y } =\sqrt{4} \sqrt{2} \sqrt{(x^{6} )^{2} } \sqrt{ (y^{3})^{2}} \sqrt{y}=2 \sqrt{2} x^{6} y^{3} \sqrt{y}    


<span>I hope it helps you :)</span>

8 0
3 years ago
Can someone please explain this step by step on how to do it
luda_lava [24]
 addition factors of 44 equivalent to a ratio of 4:7
4*3= 12
7*3= 21
12+21= 32
4*4= 16
4*7= 28
28+16= 44
This is one of those things that you just have to do a bunch of calculations to eliminate and identify by deductive reasoning.
6 0
3 years ago
(X^2-16)/(x^2)-x-12
Mariulka [41]
Answer: (x + 3)(x - 4)

Step-by-Step Solution:

We need to Factorize the given Quadratic Polynomial by using Splitting the Middle Term Method.

= x^2 - x - 12
= x^2 - 4x + 3x - 12
= x(x - 4) + 3(x - 4)
=> (x + 3)(x - 4)
3 0
2 years ago
A new novel is selling for $21.95. If it is on sale at 20% off, find the amount of discount and the sale price.
soldi70 [24.7K]

Answer:

B

Step-by-step explanation:

20% × 21.95 = 4.39

21.95 - 4.39 = 17.56

4 0
3 years ago
What is the length of a car if the length on the scale model car is 17cm and the scale is 2cm : 50cm?
e-lub [12.9K]
425 cm. The ratio is 17 : x is equal to 2cm : 50cm. You use cross multiplication to solve. 17 times 50 = 2 times x.
850 = 2x
425 = x

4 0
3 years ago
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